Granite Surface Plate | A Precise Auxiliary Partner for Workpiece Inspection

Granite surface plates have remarkable features that make them essential in precision industrial applications.

First, they are made from high-quality granite (usually Jinan Green granite), which gives them extremely high hardness and strong wear resistance, ensuring long-term use without substantial surface damage.

Second, granite has excellent stability against temperature and humidity changes. That means the flatness and dimensional accuracy of the surface plate remain nearly unaffected in different environmental conditions, which is vital for maintaining measurement precision.

Third, after precise grinding and lapping processes, granite surface plates achieve ultra-high flatness and straightness, providing a perfect reference plane for inspecting the geometry and dimensions of workpieces.

Besides, granite is highly corrosion-resistant, making the surface plate suitable for various industrial environments, including those with mild chemical exposure.

Collectively, these features ensure that granite surface plates can reliably serve as the foundation for accurate workpiece inspection and measuring tool calibration in fields like machinery manufacturing, mold production, and precision engineering.